JPS5953584A - Grouting process - Google Patents

Abstract

PURPOSE:To uniformly and tightly consolidate a weak or leaky ground to effect leak prevention, by grouting to the ground a water glass-based consolidator of specific composition. CONSTITUTION:Consolidiation and leak prevention of weak or leakly ground can be accomplished by grouting into the ground a consolidator consisting of (A) a chemical prepared by first mixing an aqueous solution of water glass with an acidic reacting agent to form an acidic water glass solution followerd by incorporating a second aqueous solution of water glass and/or alkaline reacting agent in the above solution so as to result in the final pH flling between 8.5 and 10.5, and (B) a second chemical prepared by mixing another acidic water glass solution with an aqueous solution of water glass and/or alkaline reacting agent so as to result in the final pH falling in non-alkaline range.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the G'/night injection-1 method for uniformly and strongly consolidating or water-stopping soft or leaking ground.

In general, the soft ground requires that the upper part of the soil and the fine-grained soil part be ridged.

In addition, due to environmental conservation and water quality conservation issues in recent construction projects, water glass grout solidifies at the point of injection without deviating from the target area, preventing pollution. From the point -i, l'L.

In order to achieve this purpose, we decided to create a multi-tube system (fill the gap between the injection pipes with a permeable instantaneous gel to form a pano-no-no). To prevent the grout from deviating, the cloud with good permeability was injected once a month, and the cloud with good permeability penetrated between the particles into the thin parts where the permeable cloud could not penetrate. A construction method has been developed that reliably infiltrates and solidifies the area to be injected by solidifying and fixing the injected material (single injection method).

”・The invention is based on method 11-14 (clara I′ with poor permeability (hereinafter referred to as 1 instant setting grout-1) and cloud with good permeability 1′1 (hereinafter referred to as ?1 body 1) "Permeable grout" and "1 [shizutsuki']" (It is related to this, and by the combination of the two, the 11 effects of the 1 person 1 method for compound treatment are demonstrated in the layer recognition.) Both solidified porcelain grout and permeable grout are obtained by adding and mixing an aqueous solution of ice cream to a single-dose reactant.
I1. (Indicated as "strongly acidic water solution")
Based on 7, this is followed by hydraulic lath water solution 11. Also Q]
J. Mix the alkaline reaction solution or a combination of both to adjust the pH to the alkaline IJ region of 8.5 to 10.5 to maintain a short gelation time and suppress the problem. 1), 1) is non-alkaline, i.e., 8 or higher; preferably 5 or lower, adjust to the 1W range of 25 to 5.0 to maintain long gelation 1). The wet grout is made of permeable Clara I.

The instant connection cloud has the following advantages:
Gano・areru.

(1) Compared to the conventional alkaline area caking with no surfactant, the caking rate is lower and the caking rate is better.

Therefore, there is little alkali leaching and the consolidation strength is excellent.

(2) Compared to the method of solidifying a strongly acidic water solution in a neutral or strong acid region with an ice cube or an alkaline agent, it is easier to control the instantaneous solidification state. be.

The permeable grout is a non-alkaline solution, preferably an acidic 11% solution. It covers a wide range of hours.Gelification 11!i
Despite the long time, there is little syneresis water, and therefore both the consolidation rate and consolidation strength are excellent.

However, the 1r-consolidating resin itself is weakly alkaline, and even though it has excellent consolidating properties, there is no leaching of alkaline content at all. In addition, although the permeable grout itself becomes acidic from neutral and will solidify sooner or later, if it is injected alone, it will solidify (t?:l) during the entire process. coarse 71i
There is a risk of deviating from the L1 Immigration Bureau. , Instant connection 1/1 cloud and penetrating cloud in the same - r + two person area! 11 7 forces Mi'l to mix and inject The weak i'ilj minute, and the 115 minutes of the Japanese chair are set as Nakagami, and the instantaneous cloud is fully charged.
C, the permeable grout is made by one person, and the instant setting cloud and the permeable grout come into contact with each other, and at the same time, the alkaline content of the instant setting cloud causes the permeable grout to form. The circle moves to the weakly alkaline side and the cloud formation is promoted, but the change causes a reaction with the enemy part of the penetrating cloud and the middle A11 -CII'; 1. Due to concerns about the old tax on the amount of JL consumed. It disappears completely. .

Also, C Jim 1' 1 no foot is 1 uki 1 ri' song range〃1 et al neutral i II'l J section to Eki Q], from neutral head to weak al-h l) area-\ and Continuation of transition &-J, gelation i, '1
The space is shortened to solidify it more firmly. It hardens and solidifies.

As shown in this Q), 1iif714 divination 1 kuni kraut, υto 1 raw cloud.

Hereinafter, while showing an example, we will collectively explain W [1, Consolidation rate and I': Jl, and the self rate with respect to the total volume of consolidation volume J''tK is 7''.

ヱ〈-1 has a wide range of highly hostile water glass melt 11i (A
(B
Kelization time, consolidation rate, homogel −+ll1l+compression 1jlli degree for circle ■ when l[) is added to 7''〈zu. .

Therefore, a strong 1'M-supporting water crow solution with air resistance was prepared by adding a water solution of Shirasu to the sulfuric acid aqueous solution and finally preparing a solution with the following combination.

) < l 7J・Shimi, experiment, 5~l(1,1,3
, 1, 1, 18-20 A, 13 go w1 circle I or 85
~ ]0.5 cans, almost instant-setting state can be easily obtained, there is little syneresis water, and therefore the solid M'i is good up to the solid λ11'l ratio k and the homogel strength is high and stable solid M'i can be obtained. C
There is. As the A-B confluence circle moves from 11 to 11 (experimental 3 to 1.12, I(i, 17), the gelation time decreases and remains constant at 1.
40 solids cannot be obtained 33 fruit j free, l
l, 15.21 A・li confluence or strong alkaline (1
)11>10.6) Then 1bth t? It is not possible to change the state to 11. Ill compression strong j Lee” 1.1 4!
i111) to i + (1: zuro., par river - (ha1 kause,
U) Alkali anti-LL, IJ water glass alkaline enemy as a agent
I use A-san and name flow, A-B combination i+lt, ((')
, yen 1 (1) 1i1741% Clause 6:j, it is of course good to be good once! There is a-C.

In the present invention, Shun 11, i'j 匪gurira is the so-called 1-1
1/Experiment A, 5-10.1.3, lll, 18
~ZO's 1luj IJIJ's cloud is 1 history 1 (1).?
- no J reaction hsu(C Experiment 1911 is shown in Table 26, and an example of the neutral range can be found from Cloth-1. All of the following have l'phase'1ij-1,ttt,1 which reaches gelation.
田A,) -7-Hocho 1 (It is important to reduce the viscosity of 5 C-13-S or less, and to be able to maintain the viscosity of 1.! 12 properties)'c. Kelization time is 5 or more for circle 1 (experiment &, 22.
27.32)-clJ: If the penetrating granite is applied for 1 to 2 minutes or less, the gelation will be a little earlier, and on the contrary, the circle I will be less than 2.5 (Experiment! Experiment Jo, 26. 31.39
), gelation tends to be delayed over several hours, so it is preferable that the I7I grout is in the non-alkaline range, that is, the circle J is 8 or less, and preferably the circle I is 5. ``Under So, most preferably, the range of 5 to 25 circles is the best.

Make a solidified body of A-13 go v1 koxin (11 I binding cloud) which is attached to Table-1, and transfer the solidified body to Table-2 with the same volume.
immersed in the A-C combined liquid (r di-permeable liquid) to make contact lJ, and then the solids were
, Measure the physical properties of (A-0 combined liquid)/Results 6-3
ni 2, 11 ri j iL+'1]'l Kusout (1)
Theory: Tsuku Enkushiudo (11)'s cape 1. ('i'ze no AM &, I, is there a lot?
3 (t here 1 shi small (shi/ko 3, (1) hard, 11', 1
Toy [θ of (II), ;i11'l Mikusiu i, immersed in / (-after circle ■ Δ, solid Ail of (1): i
(21.・then l, ``j′ Lucari 11111 to neutral, and ((I) c jino η1 cow gujiut υ: i r
y 1ii Moving from 1st rule to 1st grade of middle school '#'j 1. ,hand(
1) Solidity A: 1. Strength of 1 body υ-1, converted to III, permeable cloud glue 11. )1ii1 kl', ri, 1, no is reduced.

Cσt, 19shiL 1lif knot 1~ and θ′Jh
In the case of +I1 Kushiudo.'' Ground for 11 people 1
It becomes more solid and (li''(really solidified -j-rujυ1 wait?), II. 1.Table-
P I-1 of 11 consequent Grau 1-(1) from I is 8.
5 or less (experiment jδ40, 41.45.46.50), 1
0.5 or more (experimental) Iθ44.49.52) approaches neutrality by contact with permeable Clara I/(II),
Penetrating Clara]・Combination with beating &c j is an illusion, there is a risk of going out of the neutral range (Implementation No. 6, 4 (J, 4)
．． 4.45.46.49.50152) or (including sex Clara l-(II) circle 1 or 2.5 to 5. When the IJ range is exceeded, the permeable grout 100 reaches the neutral range. In consideration of the fact that it may not be possible, the present invention is limited to the range of the circle that most reliably maintains the neutral region.This will ensure an increase in strength, and in the case of penetration dμ, -BJ growth Time conversion 11; Even if there is a property between ji, the shortening power between Kelization 11j9 and 'pJ' is effective,
3. In the experimental example, water lath with a molar ratio of 3.5 was used as the hydraulic lath, and bicarbonate triuno was used as the alkaline reactant.

19IJ7'' comb/koka, water glass f+;l,
In addition, the molar ratio is 1 to 5 (nearly 71 each yuzu water crow, and as an alkaline reactant, bicarbonate), Lium, 11
It is also possible to use common alkaline agents such as thorium carbonate, thorium carbonate, nonorium carbonate, thorium carbonate, magi/rum carbonate, caustic noon, and caustic potash.

During actual construction, a multi-layered injection tube '1) is inserted into the ground, and the strong acidic water lath molten a is continuously fed into the ground, and the strong acidic water is mixed into the 7 lath cores. In this case, the circle l of the confluent liquid is 11・with ε35~10.5.
Hydraulic power lath water 1r adjusted to always maintain 1g circumference
il (11 g of a liquid containing an alkaline reactant or both of these is sent from another tube and mixed with 11 g of water and 1 loaf of water) into 7 colors of 9 bends. Pour it into the ground.

The combination θie 7t'j is a so-called instantaneous cloud.

Next, pour in strong acid water.
Combined bit, 71'i.

It was adjusted so that the non-alcoholic range was always 4.5%.
) Reaction cutter; ↓ To the combination of these two names, send Rinaru from another pipe and 11: Mix 1 stream of strongly acidic water at the tip of the human body (L and 1 flow and mix it into the ground). do.

The call-b1ren ii1. kJ: Tokoro Qi'i Zjito 14
1. Cloud. In this way, we decided to move 71 people's money by using instant setting grout and permeable cloud once a month based on V11 acidic water glass melting agent. From, ゛21zu, IIM A Old 1
Ushikura 1 ri 1 ・Lt △ on the ground, Otsu 1: The gap between the fangs and the ground HIHH + and the ending of the sudage transfer・J・IJ 11 11: Panonono effect in the gap between “Immigration” Form a certain solid body /-hole, and add to it: 1. It's a penetrating cloud, or Y1 is in the gap between 11 officers and 2JII.
? In addition to preventing IH-J in advance, we also inject instantaneous clouds into rough areas, weak areas, and layer interfaces near the stage to prevent permeable clouds from deviating from a predetermined range. After that, the instant-binding cloud is injected into the area where the instant-binding cloud could not penetrate by breaking the rule (by superimposing Clara (・) on The grout penetrates between 411 and solidifies.At this time, the instant-setting cloud in the pH range of 8.5 to 0.5 and the infiltration in the former Jll of 1-116 Due to the contact between the two types of grout, both of the two types of grout move to the neutral region and become instantly set. Shorten the distance between 111i and prevent deviation from the specified range 1, make the ground for 11 people more solid, and even out the entire area t'↓
can be solidified.

Revision applicant: Reinforced En7niya Link Co., Ltd.
People Patent Attorney Hitoshi Sometani Director General of the Patent Office Kazuo Wakasugi 1. Display of the case 1982 TL Pigeon/N/[Application No. 163395 2, Title of the invention: Medicine (Foresting method 3, Interaction with the person making the amendment case) Patent applicant: 3-15-1 Hongo, Bunkyo-ku, Tokyo Beautiful evil 6, correction (no number of inventions increasing from 2 664-

Claims (1)

[Claims] In the ground V1 method, in which a consolidation agent i (1) is injected into soft or leaking ground and the ground is consolidated, a water soluble dku is mixed with an acidic reactant as the consolidation chemical solution. When mixed with the acidic water glass solution obtained by 11/i) i, the 1) 11 of the combined blood is adjusted to be in the range of 8.5 to 10.5. The reactant or a mixture thereof is combined with the acidic water solution.
A water glass adjusted so that when mixed with the injected chemical solution formed by mixing soil and the acidic water glass solution (1), the P I-I of the merging enemy is in the non-alkaline range. Aqueous dispersion, arunonori reactant, or a mixture thereof with commercially available acid 1
Bovine water Jj lath solution and U:1, mixed l-L
7 colors of 1 medicine (Jl' Ill L, 1 medicine 7■L1-person 21 method that is characterized by being injected into the ground).